The decision to issue and later revoke an arrest warrant for WikiLeaks founder Julian Assange was made without error, Swedish prosecutors said Sunday.

Karin Rosander, a spokesperson for the Swedish Prosecution Authority, said that an "on-call" prosecutor first made the decision to issue a warrant for Assange after learning of rape allegations. A second prosecutor with more detailed information later revoked it after finding there were no grounds to suspect Assange of rape.

"The prosecutor who took over the case yesterday had more information, and that is why she made a different assessment than the on-call prosecutor," Rosander said.

Rosander said there was "absolutely nothing" in the more detailed material that would suggest either prosecutor had erred.

Despite the position of the prosecution authority, a Swedish justice watchdog group known as RO filed a complaint about the on-call prosecutor with the country's Ombudsmen of Justice on Sunday.

RO spokesperson, Johann Binninge, said the complaint alleges that the prosecutor issued the warrant "without having enough information to make such a decision."

Assange said the warrant -- however short-lived -- had damaged his reputation.

He was quoted in the Swedish tabloid Aftonbladet as saying that his "enemies" could now point to the allegations as reasons to discredit his organization.

"I don't know who's behind this but we have been warned that for example the Pentagon plans to use dirty tricks to spoil things for us," he said in comments translated to Swedish. "I have also been warned about sex traps."

The Pentagon did not offer immediate comment on Sunday.

Assange remains under suspicion of molestation in Sweden, where the term covers a wide range of offences that can include inappropriate physical contact with a fellow adult.

But the WikiLeaks founder has rejected the molestation allegation saying he has never "had sex with anyone without the full consent of both parties."

WikiLeaks spokesperson Kristinn Hrafnsson said the organization believes that the story behind the arrest warrant may involve ulterior motives.

"It is such an unbelievable unfolding of events that it would be unnatural not to consider that there is something behind it," he said from Iceland.

WikiLeaks intends to release an additional batch of 15,000 classified U.S. documents from the Afghan war. The Pentagon has warned the organization that doing so could put the lives of Americans and Afghans at risk.

With files from The Associated Press